the value depends on a few things. First off, do the blades have any chips or cracks in them? Does the turbo spin freely with almost play in the spin. Is there pitted rust near the wastegate or where the oil lines run to the turbo. Does it look shiotty? NOTE!! If ur sellin it, in no way should u take the turbo apart to clean it or something. W/ out proper tools u could disalign tthe turbo and it wont spin balanced.